Show:
Theoretical
Experimental
Predictions
Vocabulary
How Likely is it?
100
Maria is flipping a coin.  What is the theoretical probability the coin will land on heads?
What is 1/2, 0.5, or 50%?
100
Layla flipped a coin 10 times and landed on heads 4 times. What is the experimental probability of landing on heads?
What is 2/5, or 0.4, or 40%?
100

If you flip a coin 10 times, about how many times should it land on heads?

5
100
Define "probability."
The chance that an event will occur
100
How likely is it that a coin is flipped and lands on tails?
Equally likely
200

In one of Ms. Costello's classes there are 12 boys and 8 girls. What is the theoretical probability of randomly selecting a girl? 

What is 8/20, 2/5, 0.4 or 40%

200
Jason rolled a die twenty times. He landed on 2 five times, 3 seven times,  6 two times, and 5 six times. What is the experimental probability of landing on 6?
1/10, 0.1, or 10%
200
You have a spinner with four equal sections that are blue, red, green, and yellow. If you spin it 100 times, about how many times should you land on yellow?
25 times
200
Define "experimental probability."
The probability of what actually occurs.
200
How likely is it that a number cube is tossed and lands on 3?
Unlikely
300

What is the probability of rolling a number greater than 2 with a number cube?

What is 2/3, or 0.66, or 66%?

300

A letter tile is randomly selected from a bag, recorded, and replaced 100 times. The results are listed below. 

What is the experimental probability of selecting the letter "E"? A = 16 E = 11 I = 29 O = 19 U = 25

11/100 or 0.11, or 11%

300

Wesley has 30 marbles in a bag. The theoretical probability of choosing a blue marble is 1/2. How many marbles are blue?

15 marbles

300
Define "theoretical probability"
The probability that you expect to happen
300
How likely is it that a number cube is tossed and it lands on 8?
never going to happen
400

There are 4 red marbles, 3 green marbles, and 1 yellow marble in a box. One marble is taken out of the box. What is the probability that the marble is red or yellow? 

What is 5/8, 0.625 or 62.5%?

400

Pedro recorded the types of birds that visit his bird feeder. Based on the results below, what is the probability the next bird will be a chickadee? 

Woodpecker = 3 Chickadee = 5 Cardinal = 1 Sparrow = 13 Blue Jay = 3

1/5, or 0.20, or 20%

400

Describe the difference between events that are certain, likely, unlikely, or impossible.

Certain would be 100% of the time, likely is anything greater than 50% of the time, unlikely is anything less than 50% of the time, and impossible is anything that has a 0% chance of occuring.

400
How likely is it that a number cube is tossed and lands on any number 1-6?
Certain
500

Malik spins a spinner with 5 equal sections numbered 1-5. What is the probability she will spin and land on a even number?

What is 1/2 or 0.5, or 50%?

500

What is the theoretical probability of spinning and landing on white? (write it in decimal form)

1/5 or 0.20

500

The Law of Large Numbers says...

the more that we do an event, the closer the experimental gets to theoretical data


Experimental approaches theoretical

500

How likely is it that you will keep track of your charger for the entire year?

unlikely